Temperature and magnetic field dependence of a Kondo system in the weak coupling regime
View/ Open
Date
01/07/2013Author
Keywords
Metadata
Show full item recordAltmetrics Handle Statistics
Altmetrics DOI Statistics
Abstract
The Kondo effect arises due to the interaction between a localized spin and the electrons of a surrounding host. Studies of individual magnetic impurities by scanning tunneling spectroscopy have renewed interest in Kondo physics; however, a quantitative comparison with theoretical predictions remained challenging. Here we show that the zero-bias anomaly detected on an organic radical weakly coupled to a Au (111) surface can be described with astonishing agreement by perturbation theory as originally developed by Kondo 60 years ago. Our results demonstrate that Kondo physics can only be fully conceived by studying both temperature and magnetic field dependence of the resonance. The identification of a spin 1/2 Kondo system is of relevance not only as a benchmark for predictions for Kondo physics but also for correlated electron materials in general.
Citation
Zhang , Y , Kahle , S , Herden , T , Stroh , C , Mayor , M , Schlickum , U , Ternes , M , Wahl , P & Kern , K 2013 , ' Temperature and magnetic field dependence of a Kondo system in the weak coupling regime ' , Nature Communications , vol. 4 , 2110 . https://doi.org/10.1038/ncomms3110
Publication
Nature Communications
Status
Peer reviewed
ISSN
2041-1723Type
Journal article
Rights
This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. To view a copy of this licence visit http:// creativecommons.org/licenses/by/3.0/.
Collections
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.